Hay
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Date
Dec. 9, 2024, 6:35 a.m.

Environment
qemu-arm64
qemu-x86_64 

[   26.398728] ==================================================================
[   26.400744] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340
[   26.401441] Read of size 1 at addr fff00000c6574000 by task kunit_try_catch/217
[   26.402383] 
[   26.402776] CPU: 1 UID: 0 PID: 217 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc2-next-20241209 #1
[   26.404209] Tainted: [B]=BAD_PAGE, [N]=TEST
[   26.404807] Hardware name: linux,dummy-virt (DT)
[   26.405442] Call trace:
[   26.405989]  show_stack+0x20/0x38 (C)
[   26.406646]  dump_stack_lvl+0x8c/0xd0
[   26.407401]  print_report+0x118/0x5e0
[   26.407906]  kasan_report+0xc8/0x118
[   26.408563]  __asan_report_load1_noabort+0x20/0x30
[   26.409228]  mempool_uaf_helper+0x314/0x340
[   26.409929]  mempool_kmalloc_large_uaf+0xbc/0x118
[   26.410674]  kunit_try_run_case+0x14c/0x3d0
[   26.411435]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   26.412120]  kthread+0x24c/0x2d0
[   26.412648]  ret_from_fork+0x10/0x20
[   26.413218] 
[   26.413561] The buggy address belongs to the physical page:
[   26.414183] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106574
[   26.415229] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   26.416040] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   26.416834] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   26.417683] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   26.418509] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   26.419436] head: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   26.420208] head: 0bfffe0000000002 ffffc1ffc3195d01 ffffffffffffffff 0000000000000000
[   26.420873] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[   26.421561] page dumped because: kasan: bad access detected
[   26.422207] 
[   26.422522] Memory state around the buggy address:
[   26.423520]  fff00000c6573f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.424294]  fff00000c6573f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.425213] >fff00000c6574000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.426113]                    ^
[   26.426541]  fff00000c6574080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.427501]  fff00000c6574100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.428289] ==================================================================
[   26.500632] ==================================================================
[   26.501679] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340
[   26.502474] Read of size 1 at addr fff00000c657c000 by task kunit_try_catch/221
[   26.503160] 
[   26.503523] CPU: 1 UID: 0 PID: 221 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc2-next-20241209 #1
[   26.504674] Tainted: [B]=BAD_PAGE, [N]=TEST
[   26.505254] Hardware name: linux,dummy-virt (DT)
[   26.506275] Call trace:
[   26.506749]  show_stack+0x20/0x38 (C)
[   26.507574]  dump_stack_lvl+0x8c/0xd0
[   26.508051]  print_report+0x118/0x5e0
[   26.508598]  kasan_report+0xc8/0x118
[   26.509165]  __asan_report_load1_noabort+0x20/0x30
[   26.509828]  mempool_uaf_helper+0x314/0x340
[   26.510407]  mempool_page_alloc_uaf+0xb8/0x118
[   26.511181]  kunit_try_run_case+0x14c/0x3d0
[   26.511816]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   26.512501]  kthread+0x24c/0x2d0
[   26.513040]  ret_from_fork+0x10/0x20
[   26.513540] 
[   26.513899] The buggy address belongs to the physical page:
[   26.514499] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10657c
[   26.515372] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   26.516168] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   26.517278] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   26.518149] page dumped because: kasan: bad access detected
[   26.518868] 
[   26.519632] Memory state around the buggy address:
[   26.520148]  fff00000c657bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.521077]  fff00000c657bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.521927] >fff00000c657c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.522675]                    ^
[   26.523475]  fff00000c657c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.524271]  fff00000c657c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.525037] ==================================================================
Metadata Full log Test run details 

[   26.589866] ==================================================================
[   26.591079] BUG: KASAN: use-after-free in mempool_uaf_helper+0x394/0x400
[   26.591865] Read of size 1 at addr ffff8881023ac000 by task kunit_try_catch/236
[   26.592645] 
[   26.593070] CPU: 1 UID: 0 PID: 236 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc2-next-20241209 #1
[   26.593923] Tainted: [B]=BAD_PAGE, [N]=TEST
[   26.594426] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   26.595268] Call Trace:
[   26.595507]  <TASK>
[   26.595829]  dump_stack_lvl+0x73/0xb0
[   26.596350]  print_report+0xd1/0x640
[   26.597170]  ? __virt_addr_valid+0x1db/0x2d0
[   26.598045]  ? kasan_addr_to_slab+0x11/0xa0
[   26.598634]  kasan_report+0x102/0x140
[   26.599259]  ? mempool_uaf_helper+0x394/0x400
[   26.599730]  ? mempool_uaf_helper+0x394/0x400
[   26.600564]  __asan_report_load1_noabort+0x18/0x20
[   26.601433]  mempool_uaf_helper+0x394/0x400
[   26.602080]  ? __pfx_mempool_uaf_helper+0x10/0x10
[   26.602597]  ? finish_task_switch.isra.0+0x153/0x700
[   26.603692]  mempool_kmalloc_large_uaf+0xb3/0x100
[   26.604423]  ? __pfx_mempool_kmalloc_large_uaf+0x10/0x10
[   26.605304]  ? __switch_to+0x5d9/0xf60
[   26.605580]  ? __pfx_mempool_kmalloc+0x10/0x10
[   26.606483]  ? __pfx_mempool_kfree+0x10/0x10
[   26.607075]  ? __pfx_read_tsc+0x10/0x10
[   26.607649]  ? ktime_get_ts64+0x86/0x230
[   26.608252]  kunit_try_run_case+0x1b3/0x490
[   26.608665]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.609486]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   26.609882]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   26.610529]  ? __kthread_parkme+0x82/0x160
[   26.611085]  ? preempt_count_sub+0x50/0x80
[   26.611523]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.612497]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   26.613153]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   26.613699]  kthread+0x257/0x310
[   26.614887]  ? __pfx_kthread+0x10/0x10
[   26.615238]  ret_from_fork+0x41/0x80
[   26.615855]  ? __pfx_kthread+0x10/0x10
[   26.616424]  ret_from_fork_asm+0x1a/0x30
[   26.616917]  </TASK>
[   26.617156] 
[   26.617406] The buggy address belongs to the physical page:
[   26.618400] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1023ac
[   26.619425] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   26.620197] flags: 0x200000000000040(head|node=0|zone=2)
[   26.620844] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   26.622040] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   26.623087] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   26.624155] head: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   26.625220] head: 0200000000000002 ffffea000408eb01 ffffffffffffffff 0000000000000000
[   26.626241] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[   26.626969] page dumped because: kasan: bad access detected
[   26.627724] 
[   26.628084] Memory state around the buggy address:
[   26.628535]  ffff8881023abf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.629517]  ffff8881023abf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.630185] >ffff8881023ac000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.631068]                    ^
[   26.631572]  ffff8881023ac080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.632332]  ffff8881023ac100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.633600] ==================================================================
[   26.727088] ==================================================================
[   26.728007] BUG: KASAN: use-after-free in mempool_uaf_helper+0x394/0x400
[   26.728997] Read of size 1 at addr ffff888102b3c000 by task kunit_try_catch/240
[   26.730051] 
[   26.730634] CPU: 0 UID: 0 PID: 240 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc2-next-20241209 #1
[   26.732224] Tainted: [B]=BAD_PAGE, [N]=TEST
[   26.732764] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   26.734129] Call Trace:
[   26.734671]  <TASK>
[   26.734889]  dump_stack_lvl+0x73/0xb0
[   26.735753]  print_report+0xd1/0x640
[   26.736642]  ? __virt_addr_valid+0x1db/0x2d0
[   26.737062]  ? kasan_addr_to_slab+0x11/0xa0
[   26.737750]  kasan_report+0x102/0x140
[   26.738165]  ? mempool_uaf_helper+0x394/0x400
[   26.739418]  ? mempool_uaf_helper+0x394/0x400
[   26.740126]  __asan_report_load1_noabort+0x18/0x20
[   26.741046]  mempool_uaf_helper+0x394/0x400
[   26.741848]  ? __pfx_mempool_uaf_helper+0x10/0x10
[   26.742579]  ? finish_task_switch.isra.0+0x153/0x700
[   26.743512]  mempool_page_alloc_uaf+0xb1/0x100
[   26.744143]  ? __pfx_mempool_page_alloc_uaf+0x10/0x10
[   26.745126]  ? __switch_to+0x5d9/0xf60
[   26.745804]  ? __pfx_mempool_alloc_pages+0x10/0x10
[   26.746536]  ? __pfx_mempool_free_pages+0x10/0x10
[   26.747318]  ? __pfx_read_tsc+0x10/0x10
[   26.748097]  ? ktime_get_ts64+0x86/0x230
[   26.748765]  kunit_try_run_case+0x1b3/0x490
[   26.749548]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.750204]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   26.750740]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   26.752036]  ? __kthread_parkme+0x82/0x160
[   26.752881]  ? preempt_count_sub+0x50/0x80
[   26.753240]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.753898]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   26.754326]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   26.755009]  kthread+0x257/0x310
[   26.755311]  ? __pfx_kthread+0x10/0x10
[   26.755999]  ret_from_fork+0x41/0x80
[   26.756779]  ? __pfx_kthread+0x10/0x10
[   26.757680]  ret_from_fork_asm+0x1a/0x30
[   26.758124]  </TASK>
[   26.758887] 
[   26.759193] The buggy address belongs to the physical page:
[   26.760141] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b3c
[   26.761224] flags: 0x200000000000000(node=0|zone=2)
[   26.762138] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000
[   26.763134] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   26.764351] page dumped because: kasan: bad access detected
[   26.765055] 
[   26.765321] Memory state around the buggy address:
[   26.766359]  ffff888102b3bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.767435]  ffff888102b3bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.768066] >ffff888102b3c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.769078]                    ^
[   26.769342]  ffff888102b3c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.770608]  ffff888102b3c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.771407] ==================================================================
Metadata Full log Test run details